Loom.



A. J. CHEVRETTE.

LOOM.

APPLICATION FILED APR. so, 1909.

9&0. Patented June 7,1910.

AUGUSTIN J'. CHIEN'RIllT'll., OF WORCESTER, MASSACHUSETTS, ASSIG'NOR TOCROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF M.ASSACI-IUSETTS;

LOOM.

To all whom it may concern.'

Be it known that I, AUGUSTIN J. Cnnv- RETTE, a citizen ofthe UnitedStates, residing at Worcester, inthe county of Worcester and State ofMassachusetts, have invented -certain new and useful Improve- `ments `inLooms, of which the following is a specication.

My invention relates to looms, and particularly to a lock mechanism forlocking or a shuttle box, after 1tv I ments in shuttle lock mechanism,as will be hereinafter fully described.

My -improvements in shuttle lock mechanism consists preferably of alever or arm, whichis pivotally mounted at the rear of a shuttle box onthe loom, and near the outer end of the shuttle box,'wl1ich lever or armhas a pivotal or swinging movement in a khorizontal plane, and isadapted to yield- 4 ingly enter through an opening in the rear wallof-the shuttle box, and exten-d into a recess in the shuttle, topositively lock or hold the' shuttle in its proper position against thepicker, while the lay moves to' its front position. 0n the rearwardmovement of the lay, to the position where the shuttle is picked fromthe shuttle box, the locking lever will be moved out of engagement withthe shuttle to release the same,

preferably through the action of an arm which is secured to the crankconnector of the loom, and lntermediate connections beltween said armvand said locking lever, all as will be hereinafter fully described.

I have shown in the drawing a detached portion of the lay end of a loom,and a shutfindicatedv by 'line 1, 1, Fig. 2, looking in the Specieationrof Letters Patent.

Patented J une "K, 1910.

Application filed April 30, 1909. Serial No. 493,184.

direction of arrow a, same figure, and showing my improvements appliedthereto. Fig. 2 is a plan view yof the right hand end of" the lay of aloom, and a partial section, looking in the direction of arrow Fig. 1,showing my improvements applied thereto, and, Fig. 3 corresponds toFig-2, but shows some of the parts shown in Fig. 2 in a differentposition; some-of the parts shown at the left in Fig. 2 are not shown inthis figure.

In the accompanying drawing, 1 is the right hand end of the lay of aloom, having the 4race-plate 2, and in this instance a stationaryshuttle box 3, to receive the shuttle 4, in the usual-way; 5` is theupper end of the picker stick; 6 is the picker, 7 is the upper partl ofthe lay sword, havingears Z -carrying a bolt 8, to which is pivotallyconnected one end of a lay crank connector 9; the other end' of thecrank connector 9 is connected with the crank part of the crank shaft10, in the usual way.

VAll of the above mentioned parts may be of the usual and well knownconstruction.

l will now describe my improvements.

The shuttle 4 has-in this instance a recessed part 4 on itsrear side,shown at its outer end. A block 11, preferably made of steel, isattaclfed to the shuttle body at one end of the recess 4, the outersurface of said block 11 is inalinement with the outer edge of theshut-tle body. A locking lever or arm 12, having on its free end anoffset portion 12, has its hub 12" pivotally mounted on a stud 13,secured in this instance on a boss on the rear wall of the stationaryshuttle box 3. rlhe locking lever or arm 12 extends in an opening 3 'inthe rear wall of the shuttle box, see'Fig. 3, and is adapted to enterinto thefrecess 4 in the rear side of the shuttle body 4, as shown inFig. 2, and engage the block 11, and the odset end 12 engage the rearwall of the shuttle box. Extending out from the hub 12 is an arm 14. Ahelically coiled` contraction spring 15 is attached at one end to thearm 14 and at its other end to a lug 3 on the rear wall of thestationary shuttle box 4. rlhe arm 14 has a hole therethrough, throughwhich loosely extends a rod or wire 1G. At the outer end of the wire orrod 16 is a collar' 17, which is adjustably Asecured thereto by a setscrew 18. The inner end of the rod 16 has in this instance an eye 16thereon, which is pivotally connected to a pin 19 on an arm 2O extendingout from the hub 20', which hub is pivotally mounted on a stud 21carried in a lug 3 on the rear wall of the yshuttle box 3.

helically coiled expansion spring 24 bears.

at one end against the inner bearings 28 and at its outer end against apin 22 in the pin 22, and acts to move outwardly said pin 22. The outerend of the pin 22 extends 1n the path of and is adapted to be engaged bythe end of an arm 25, 1n this instance secured upon the lay crankconnector 9, see Fig. 1.

- The operation of my improvements, from the above description inconnection with the drawing, will be readily understood by thoseskilledin the art.

When the shuttle has entered the shuttle box and has reached its outward'position shown in Fig. 2, the locking arm or` lever 12, through theaction of the spring 15, will move said locking arm or lever through thei opening 3 in the rear wall of the shuttle box 3, and into the recess 4in the rear side of the shuttle 4, and cause said locking arm or lever12 to engage the block 11 in the rear side of the shuttle, as shown" inFig. 2, to lock or hold the shuttle against the picker 6. The lockinglever 12 will remain in its locking position during the forward movementof the lay, and durin the first art of the backward movement o the lay.n the continued backward movement of the lay, the crank shaft l0revolving in the direction indicated by arrow w in'Fig. Y1, will raisethe crank connector 9 at its outer end, and the raising of the crankconnector 9 at its outer end, will move the arm 25 toward the lay, andthe engagement of said arm.with the outer end of the spring actuated pin22, will move inwardly said pin, against the actionof the spring 24, andthrough the engagement of the inner end of the pin 22 with the arm 20,will rock said arm and move it inwardly, and also move the army 20, andthrough the connector 16 and collar 17 thereon, move the arm 14, andalso movev the locking arm or lever 12 outwardly and away from theshuttle, to disengage it from the shuttle, as shown inFig. 3, and leavethe shuttle free to be picked. In the continued rotation of the crankshaft 10,and the lowering of the crank connector 9 at its outer end, thearm 25`on said crank connector will be moved away from the'springactuated pin 22, and allow the spring 24 to act, to move outwardly saidpin, and leave the spring 15 free to act to return the parts of @comothe lock mechanism to the position shown in Fig. 2, so that on the nextboxing of the shuttle, the locking arm or lever 12 will enter the recess4 in the rear wall of the shuttle 4, to again lock the shuttle inposition. i v

It will be understood that the details of construction of myinprovements may be varied if desired. The essential feature of my.improvements is the connection of the shuttle locking lever, throughintermediate connections, with some movmg part of the loom, preferablythe lay, to automatically move the locking lever or arm at the propertime out of its operative position, and into its inoperative position,and then to allow the locking lever or arm to return into its operativeposition, after the shuttle has been thrown from the box.

Having thus described my invention, what I claim as new and desire tosecure by Iletters Patent is: l

1. In a shuttle lock mechanism for a loom, a device 'for entering anopening in the shuttle box* and engaging the shuttle, yielding means formoving said device to cause itto engage the shuttle, an arm on the laycrank connector, and means, intermediate said device and said arm, todisengage sai'd device from the shuttle.

2. In a shuttle lock mechanism for a loom,

a lever or arm, pivotally mounted at the rear engage the shuttle, aspring for yieldingly moving said arm to cause 1t to engage the shuttle,a connection from said arm to a -second arm, pivotally mounted at therear of the shuttle box, and said second arm, a

c longitudinally moving pin intermediate said second mentioned arm andan arm on thel lay crank connector, and said last-mentione arm and crankconnector.

3. In a loom, the combination with a shuttle having a recess on the rearsurface thereof, and a block or bearin surface securedeinsaid recess, ofa loc device for entering said recess and engaging said block to holdthe shuttle in its outer position and prevent the rebound thereof, saiddevice comprising a lever or arm ivotally mounted at the rear of theshuttle ox, and adapted to enter through an opening in the shuttle box,and means for yieldingly moving said lever or arm into operativeposition, and connections intermediate said lever or arm and the laycrank connector, to said lever or arm from the shuttle.

A. J. CHEVRET'IE.

Witnesses:

MINNA Haas,` JOHN C. DEWEY.

disengage of a shuttle box, and adapted to enter. ,through an opening inthe shuttle box and

